August weather forecast
Casillas, Guatemala

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Weather in August

August, the last month of the summer in Casillas, is another warm month, with an average temperature fluctuating between 14.9°C (58.8°F) and 24.2°C (75.6°F).

Temperature

The transition from July to August sees average high-temperatures adjusting to a still warm 24.2°C (75.6°F), from a not significantly different 24°C (75.2°F). August generally records an average low-temperature of 14.9°C (58.8°F).

Humidity

In Casillas, Guatemala, the average relative humidity in August is 87%.

Rainfall

In Casillas, Guatemala, in August, it is raining for 27.9 days, with typically 241mm (9.49") of accumulated precipitation. Throughout the year, there are 231.3 rainfall days, and 1656mm (65.2") of precipitation is accumulated.

Daylight

The average length of the day in August is 12h and 35min.
On the first day of the month, sunrise is at 05:44 and sunset at 18:29. On the last day of August, in Casillas, sunrise is at 05:48 and sunset at 18:13 CST.

Sunshine

The average sunshine in August in Casillas is 9.4h.

UV index

The months with the lowest UV index are August and October, with an average maximum UV index of 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 4 in August transforms into the following instructions:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Updated: Feb 15, 2024 | Published by: Weather Atlas | About Us / Weather Forecasting / Data Sources

Frequently asked questions

What are August temperatures in Casillas?

During August, Casillas experiences an average high-temperature of 24.2°C (75.6°F) and a low-temperature of 14.9°C (58.8°F). In April, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, is calculated to be 29°C (84.2°F).

What is the average humidity in August in Casillas?

In August, the average relative humidity is 87%.

How many days does it rain in August in Casillas?

In August, in Casillas, the rain falls for 27.9 days. Throughout August, 241mm (9.49") of precipitation is accumulated.

What is the average length of the day in August in Casillas?

The average day length in August is 12h and 35min.

What time are sunrise and sunset in August in Casillas?

On the first day of August in Casillas, Guatemala, sunrise is at 05:44 and sunset at 18:29. On the last day of the month, sunrise is at 05:48 and sunset at 18:13 CST.

How many hours of sunshine does Casillas have in August?

In August, the average sunshine duration in Casillas, Guatemala, is 9.4h.

What are the months with the lowest UV index in Casillas?

The months with the lowest UV index in Casillas are August and October, with an average maximum UV index of 4.

What is the UV index intensity in August in Casillas?

The average daily maximum UV index in August in Casillas is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Casillas, Guatemala

Average temperature in August - Casillas, Guatemala
  • Average high temperature in August: 24.2°C

The warmest month (with the highest average high temperature) is April (27.3°C).
The month with the lowest average high temperature is October (22.5°C).

  • Average low temperature in August: 14.9°C

The month with the highest average low temperature is May (16.5°C).
The coldest month (with the lowest average low temperature) is January (11.8°C).

Average pressure in August
Casillas, Guatemala

Average pressure in August - Casillas, Guatemala
  • Average pressure in August: 1013.2mbar

The month with the highest atmospheric pressure is January (1015.5mbar).
The month with the lowest atmospheric pressure is May (1012.5mbar).

Average wind speed in August
Casillas, Guatemala

Average wind speed in August - Casillas, Guatemala
  • Average wind speed in August: 6.7km/h

The windiest month (with the highest average wind speed) is January (12.8km/h).
The calmest month (with the lowest average wind speed) is September (5.9km/h).

Average humidity in August
Casillas, Guatemala

Average humidity in August - Casillas, Guatemala
  • Average humidity in August: 87%

The month with the highest relative humidity is September (90%).
The month with the lowest relative humidity is March (69%).

Average rainfall in August
Casillas, Guatemala

Average rainfall in August - Casillas, Guatemala
  • Average rainfall in August: 241mm

The wettest month (with the highest rainfall) is May (285mm).
The driest month (with the least rainfall) is January (7mm).

Average rainfall days in August
Casillas, Guatemala

Average rainfall days in August - Casillas, Guatemala
  • Average rainfall days in August: 27.9 days

The month with the highest number of rainy days is September (28.7 days).
The month with the least rainy days is January (6.7 days).

Average daylight in August /
Average sunshine in August
Casillas, Guatemala

Average daylight in August / Average sunshine in August - Casillas, Guatemala
  • Average daylight in August: 12h and 4min

The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 18min).

  • Average sunshine in August: 9h and 2min

The month with the most sunshine is April (Average sunshine: 11h and 18min).
The month with the least sunshine is October (Average sunshine: 7h and 24min).

Average sunshine days in August
Casillas, Guatemala

Average sunshine days in August - Casillas, Guatemala
  • Average sunshine days in August: 2.2 days

The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is September (0.9 days).

Average UV index in August
Casillas, Guatemala

Average UV index in August - Casillas, Guatemala
  • Average UV index in August: 4

The months with the highest UV index are March and April (UV index 6).
The months with the lowest UV index are August and October (UV index 4).

Average cloud cover in August
Casillas, Guatemala

Average cloud cover in August - Casillas, Guatemala
  • Average cloud cover in August: 50

The months with the most cloud cover are June and September (Cloud cover 59).
The months with the least cloud cover are January, February and March (Cloud cover 26).

Average visibility in August
Casillas, Guatemala

Average visibility in August - Casillas, Guatemala
  • Average visibility in August: 7km

The month with the highest visibility is March (10km).
The month with the lowest visibility is September (6km).

Casillas, Guatemala

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